1995 jeep cherokee 4.0 heating up when sitting, new moter, t'stat axis fan comes on before it gets in the red and lowers the temp.

Hi Reggie, I'm glad to help. TWO things I want you to check. ONE: You have changed out a lot of stuff, so you may have air trapped in the cooling system, you'll need to remove the radiator cap and let it run until your at operating temperture, while watching to make sure it doesn't overheat on your of-course. If after running the engine say 30 minutes and topping off the coolant if needed, it still runs hot. Move on to: TWO: If you have the electric fan, some do, some don't. If it is electric make sure the fan is coming on, if it doesn't come on then you have found your problem, replace the fan assembly. Hope this helps and have an awesome day Reggie!

Could be either one, but usually its the fan motor.
You can run a wire direct from the battery to bypass the relay to see how fast the fan is able to run. The connector on the fan relay can become damaged too.

check and see if the fan is working and check the fan relay

Is the engine getting to operating temp? If the t-stat is stuck open, engine will not heat up and neither will the heater, gets lukewarm. Or is it a door problem in the HVAC plenum? Go to www.heatertreater.net for solutions.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/michael_2496c4f07ad24453

you electric fan probably isnt working with vehicle warmed up lift hood and watch temperature gauge when it starts to over heat check to see that fan is working if not it could be the fan relay or fan itself if the fan does turn on its most likley the thermostat

there are 3 things that can cause your trouble .. there is a thermal fan switch (usually mounted on the side of the radiator midway down) ... that might operate the fan directly or thru a relay .. and there is a fuse ... the thermal switch is most likely .. if there is a relay then it should be marked on the panel where several relays are mounted .. same with the fuse .. the fan is normally only on when you are sitting still idling and the temp gets above the thermal switch value ..

This might help you as it looks as though you have an electric fan to cool , there should be a sensor on your radiator hoses upper and lower.they are actually switches triggered by the coolant temperature in side the hose. While your Jeep is sitting idle, shut off the AC as it adds to the heat off the engine not to merntion useing more gas. you should make sure both high and low speeds on the coolant fan work. good luck if this does'nt help check out the post, with more, on the 1995 Jeep heating up..

sound like coolant temperature sensor is open or not working.scan it to see when engine get operating temperature when coolant temperature get 190 degrees the coolant temp sensor should show 190 degrees if it shows 80 degrees or lower it not working replace it.the coolant sensor control coolant fan.when it gets hot it resistance changes or lower.the pcm grounds it .then cooling fans will run.

Have you tested the fan sending unit on the engine? disconnect that and if the fan runs (Key on) that is most likely the problem.

possibles. lower radiater hose calapsing, belt stretch (heat), the faster an engine turns, faster water flow, to fast flow, not enogh time to cool, pls. keep in mindthat most items are produce outsidse us. consequently,quality suffers, been known to go thru a couple before getting a good one. test- have someone hold throttle, bring to 2000 rpm hold make sure temp. is up sqeeze top hose, feel surge immediatly if all is operating correctly(t.stat). if no surge=t. stat.